Index: findbugs-2.0.2/build.xml
===================================================================
--- findbugs-2.0.2.orig/build.xml	2013-08-30 17:33:07.304100447 +0800
+++ findbugs-2.0.2/build.xml	2013-08-30 17:35:25.660786523 +0800
@@ -1213,7 +1213,9 @@
     <!-- Delete generated files. -->
     <target name="clean">
         <delete dir="${scripts.dir}"/>
-        <delete dir="${build.dir}"/>
+        <delete>
+            <fileset dir="${build.dir}" excludes="bcel-5.2-src/**"/>
+        </delete>
         <delete dir="${doc.dir}"/>
         <delete dir="${web.dir}"/>
         <delete dir="${apiDoc.dir}"/>
Index: findbugs-2.0.2/build/bcel-5.2-src/bcel-5.2/build.xml
===================================================================
--- findbugs-2.0.2.orig/build/bcel-5.2-src/bcel-5.2/build.xml	2013-08-30 17:31:49.047712389 +0800
+++ findbugs-2.0.2/build/bcel-5.2-src/bcel-5.2/build.xml	2013-08-30 17:34:55.896638924 +0800
@@ -24,6 +24,7 @@
 						source="1.5"
 						target="jsr14"
 						deprecation="on"
+						encoding="ISO-8859-1"
 						debug="on">
 				</javac>
 	</target>